Sentences with phrase «changing ocean conditions»

As yet, there are few data on species» response across the complete life cycle of marine invertebrates to ocean acidification in isolation, and combined with (cf. [31]-RRB- warming and other climate - related stressors, to assess transgenerational adaptive potential to changing ocean conditions [67].

It's unclear whether or not climate change has anything to do with the latest offensive, but scientists say that the increased jellyfish populations are indicative of changing ocean conditions: warmer water, and fewer predators due to overfishing.

«The big question,» says Nick Golledge, senior research fellow at the Antarctic Research Centre at Victoria University in New Zealand, «is whether the ice sheet will react to these changing ocean conditions as rapidly as it did 14,000 years ago.»

Though two marine - derived drugs, one for treating cancer and the other for pain control, are on the market and 25 others are under development, the fungus growing on seaweed, bacteria in deep sea mud and sea fans that could produce life - saving medicines are under assault from changing the ocean conditions.

Phytoplankton (microscopic marine algae) are also dramatically affected by changing ocean conditions.

California sea lions, in particular, have been hit hard by changing ocean conditions in recent years in what has been called a «crisis.»

Here we provide an overview of several technical developments by scientists and engineers at the Monterey Bay Aquarium Research Institute (MBARI) that have enabled and enhanced deep - sea exploration and experiments to assess the effects of changing ocean conditions on benthic marine animals.

The data may also be used to forecast how changing ocean conditions may affect weather and climate systems worldwide.

«The big question is whether the ice sheet will react to these changing ocean conditions as rapidly as it did 14,000 years ago,» said lead author Dr Nick Golledge, a senior research fellow at Victoria's Antarctic Research Centre.

Data from multiple sources are combined to produce graphic images of changing ocean conditions.

In previous years, Antarctic sea ice hit record highs, potentially due to changing ocean conditions linked to the melting of land - bound glaciers.

But nobody was sure whether size reduction was really due to large - scale human predation, or to changing ocean conditions.

The findings presented at the Society of Marine Mammalogy's Biennial Conference in San Francisco demonstrate that humpback foraging responds to environmental changes, and illustrates how marine mammals serve as sentinels of ever - changing ocean conditions.

As the tide and weather change the ocean conditions will change.

They are decadal changes associated with decadal changes ocean conditions.

Not exact matches

That's evidence that the relatively slow movement of the debris (2 - 4 kilometers per hour) helped species adapt to changing conditions across the Pacific Ocean, the team wrote.

«Volcanic aerosols in the stratosphere absorb infrared radiation, thereby heating up the stratosphere, and changing the wind conditions subsequently,» said Dr. Matthew Toohey, atmospheric scientist at GEOMAR Helmholtz Centre for Ocean Research Kiel.

«Our MICE model uses whale numbers dating back from 1890 to now and then couples this with food availability and ocean physics to understand the changes to ocean conditions that whales are likely to experience,» Dr Plaganyi said.

Now, a 15 - year, 30 - nation research collective called Geotraces is embarking on an ambitious global survey of ocean chemistry to quantify trace elements and shed light on how chemical concentrations fluctuate in response to changing environmental conditions.

However, while rangeomorphs were highly suited to their Ediacaran environment, conditions in the oceans continued to change and from about 541 million years ago the «Cambrian Explosion» began — a period of rapid evolutionary development when most major animal groups first appeared in the fossil record.

Back in the lab, they will analyze the mosaics to see how the reefs are changing over time, and how the variation of ocean conditions and human activities impact each reef.

«The idea is that sudden changes could arise when threshold conditions are met — for example, a tipping point arises whereby a large amount of ice is released suddenly into global oceans.

While Antarctic ice shelves are in direct contact with both the atmosphere and the surrounding oceans, and thus subject to changes in environmental conditions, they also go through repeated internally - driven cycles of growth and collapse.

Models used to project conditions on an Earth warmed by climate change especially need to consider how the ocean will move excess heat around, Legg said.

These findings from University of Melbourne Scientists at the ARC Centre of Excellence for Climate System Science, reported in Nature Climate Change, are the result of research looking at how Australian extremes in heat, drought, precipitation and ocean warming will change in a world 1.5 °C and 2 °C warmer than pre-industrial condiChange, are the result of research looking at how Australian extremes in heat, drought, precipitation and ocean warming will change in a world 1.5 °C and 2 °C warmer than pre-industrial condichange in a world 1.5 °C and 2 °C warmer than pre-industrial conditions.

This in turn changes the prevailing winds to bring colder conditions over the northern oceans.

The rapid northerly shifts in spawning may offer a preview of future conditions if ocean warming continues, according to the new study published in Global Change Biology by scientists from the Pacific States Marine Fisheries Commission, Oregon State University and NOAA Fisheries» Northwest Fisheries Science Center.

«Changes in spawning timing and poleward migration of fish populations due to warmer ocean conditions or global climate change will negatively affect areas that were historically dependent on these fish, and change the food web structure of the areas that the fish move into with unforeseen consequences,» researchers wrote.

It then fluctuated around that level, reaching a high of 306,220 in 2012 before declining below the carrying capacity in the years since as ocean conditions changed.

While these results indicate that coccolithophore calcification might increase under future ocean conditions, the researchers say that it's still unclear «whether, or how, such changes might affect carbon export to the deep sea.»

«These conditions will cause changes in phytoplankton growth and ocean circulation around Antarctica, with the net effect of transferring nutrients from the upper ocean to the deep ocean,» said lead author J. Keith Moore, UCI professor of Earth system science.

The Iceland and Greenland Seas are among the only places worldwide where conditions are right and this heat exchange is able to change the ocean's density enough to cause the surface waters to sink.

Because purple sea urchin females can condition their progeny to experience future stress, the urchins have tools at hand to respond to changes like ocean acidification.»

The study, by an international team of scientists led by the University of Cambridge, examined how changes in ocean currents in the Atlantic Ocean were related to climate conditions in the northern hemisphere during the last ice age, by examining data from ice cores and fossilised plankton shocean currents in the Atlantic Ocean were related to climate conditions in the northern hemisphere during the last ice age, by examining data from ice cores and fossilised plankton shOcean were related to climate conditions in the northern hemisphere during the last ice age, by examining data from ice cores and fossilised plankton shells.

«The species lives in habitats that are exposed to large changes in ocean conditions and have limited scope to avoid these changes.»

The results, published in the journal Nature Geoscience, show how climate events in the Northern Hemisphere were tightly coupled with changes in the strength of deep ocean currents in the Atlantic Ocean, and how that may have affected conditions across the gocean currents in the Atlantic Ocean, and how that may have affected conditions across the gOcean, and how that may have affected conditions across the globe.

A team of biologists from the GEOMAR Helmholtz Centre for Ocean Research Kiel, the Norwegian University of Science and Technology (NTNU) and the University of Florida has now been able to demonstrate with the comb jellyfish Mnemiopsis leidyi that, at least in this type of jellyfish, the mechanism of regeneration can be changed depending on the environmental conditions.

This shift is likely to continue: Climate change and pollution are changing the ocean chemistry, creating conditions favorable to jellyfish.

«Changes in ocean conditions that affect fish stocks, such as temperature and oxygen concentration, are strongly related to atmospheric warming and carbon emissions,» said author Thomas Frölicher, principal investigator at the Nippon Foundation - Nereus Program and senior scientist at ETH Zürich.

During the later period, when there was less sea ice, the whales dove significantly longer and deeper than in the earlier period — presumably in search of prey as the animals, in turn, changed their habits because of different ocean conditions brought on by sea ice loss.

Other scientists show how robotic drones, called Seagliders, swoop under the ice to track the movement of the pack and how it changes as ocean conditions change.

As any sailor knows, conditions at the ocean's surface can change in a moment.

«The ability to adapt to changing conditions is going to become even more important as humans impact the environment, whether it's from ocean acidification or increasing temperatures or other types of global changes that are occurring.»

This changed ocean chemistry and reduced atmospheric CO2 levels, which increased global ice coverage and propelled Earth into severe icehouse conditions.

(E) establishes performance measures for assessing the effectiveness of adaptation strategies intended to improve resilience and the ability of natural resources in the coastal zone to adapt to and withstand the impacts of climate change and ocean acidification and of adaptation strategies intended to minimize those impacts on the coastal zone and to update those strategies to respond to new information or changing conditions; and

(4) establish methods for assessing the effectiveness of strategies and conservation actions taken to protect, restore, and conserve natural resources to enable them to become more resilient, adapt to, and withstand the impacts of climate change and ocean acidification, and for updating those strategies and actions to respond to new information and changing conditions;

If we look into the ocean, then changes in the vertical temperature profiles may plausibly affect oceanic wave propagation, thus perturbing the conditions to which the delayed mechanism is sensitive.

The open ocean around the atoll was 2 degrees Celsius warmer than usual, but a short - term change in weather conditions pushed temperatures on top of the reef to 6 degrees Celsius above normal.

The complexity of these biochemical processes makes it difficult to accurately simulate how the ocean absorbs CO2 from the atmosphere and how it stores this carbon as global conditions change.

Because huge expanses of the deep ocean will be exposed to changing environmental conditions as a result of climate change (Mora et al., 2013; this study), the societal impacts of climate change in the deep sea will undoubtedly be widespread, complex and dynamic.